We are offering copper sulphate.Small blue and clean crystal, odorless, density:2.284gcm3, soluble in water and diluted the solution appear weak acidity. It will be efflorescence slowly in dry air, and its surface wil become thite powder substance. It will lose four crystal water when heated to 110c, and will be changed into white anhydrous copper sulfate which is easy to absorb water when the temperature is higher than 150c.Copper sulfate feed gradeitemstardardcuso4.5h2o98%mincu25%minpb10ppm maxcd10ppm maxas5ppm maxfe2ppm maxcopper sulfate industrial gradeitemindexcuso45h2o (%)9896cu (%)25.0624.5water insoluble (%)0.20.2pb (%)10 ppm10 ppmas (%)4 ppm4 ppmfineness20-40 mesh 95% passing rate40-80 mesh 95% passing rate80 mesh 95% passing rateapplication:(1) feed additive(2) hardware industry(3) chemical industry: used in the manufacture of copper salt leaching, copper chloride, cuprous chloride and cuprous oxide, etc.(4) dyestuff industry: used in the prodection of copper sheet azo dyes.such as blue complexing agent.also in organic synthesis, spices and dye intermediates of catalysts.(5) water treatment industry.(6) electroplating industrystorage & handling:1> store the product in a cool and dry place.2> prevent from direct sunlight, water and moisture.3> avoid contact with strong acid, oxidants or poisonous substances.4> exposure to moisture will make it oxidze easily to sodium sulphate.5> do not store it for long time.Quality controlsgs is availabel on loading port if customer needs